Objects in the image:
category: person
category: person
category: surfboard
category: person
category: surfboard
category: person
category: surfboard

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the guy on the yellow board?
a: No
q: is it one of the people on the blue board?
a: No
q: is it the topless one?
a: Yes